Structure of a cellulose degrading bacterial community during anaerobic digestion

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	Structure of a cellulose degrading bacterial community during anaerobic digestion
	O'Sullivan, CA ; Burrell, PC ; Clarke, WP ; Blackall, LL
刊名	BIOTECHNOLOGY AND BIOENGINEERING
	2005
卷号	92 期号:7 页码:871-878
关键词	FIBROBACTER-SUCCINOGENES S85 SP-NOV KINETICS BIOCONVERSION MICROBIOLOGY DEGRADATION POPULATIONS HYDROLYSIS SUBSTRATE WASTE
ISSN号	0006-3592
中文摘要	It is widely accepted that cellulose is the rate-limiting substrate in the anaerobic digestion of organic solid wastes and that cellulose solubilisation is largely mediated by surface attached bacteria. However, little is known about the identity or the ecophysiology of cellulolytic microorganisms from landfills and anaerobic digesters. The aim of this study was to investigate an enriched cellulolytic microbial community from an anaerobic batch reactor. Chemical oxygen demand balancing was used to calculate the cellulose solubilisation rate and the degree of cellulose solubilisation. Fluorescence in situ hybridisation (FISH) was used to assess the relative abundance and physical location of three groups of bacteria belonging to the Clostridium lineage of the Firmicutes that have been implicated as the dominant cellulose degraders in this system. Quantitation of the relative abundance using FISH showed that there were changes in the microbial community structure throughout the digestion. However, comparison of these results to the process data reveals that these changes had no impact on the cellulose solubilisation in the reactor. The rate of cellulose solubilisation was approximately stable for much of the digestion despite changes in the cellulolytic population. The solubilisation rate appears to be most strongly affected by the rate of surface area colonisation and the biofilm architecture with the accepted model of first order kinetics due to surface area limitation applying only when the cellulose particles are fully covered with a thin layer of cells. (c) 2005 Wiley Periodicals, Inc.
收录类别	SCI
原文出处	10.1002/bit.20669
语种	英语
公开日期	2016-05-12
内容类型	期刊论文
源URL	[http://ir.xtbg.org.cn/handle/353005/9841]
专题	西双版纳热带植物园_文献共享
推荐引用方式 GB/T 7714	O'Sullivan, CA,Burrell, PC,Clarke, WP,et al. Structure of a cellulose degrading bacterial community during anaerobic digestion[J]. BIOTECHNOLOGY AND BIOENGINEERING,2005,92(7):871-878.
APA	O'Sullivan, CA,Burrell, PC,Clarke, WP,&Blackall, LL.(2005).Structure of a cellulose degrading bacterial community during anaerobic digestion.BIOTECHNOLOGY AND BIOENGINEERING,92(7),871-878.
MLA	O'Sullivan, CA,et al."Structure of a cellulose degrading bacterial community during anaerobic digestion".BIOTECHNOLOGY AND BIOENGINEERING 92.7(2005):871-878.